Hi, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.24%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 2925 days | 95% |
| Natasha Startup | 9/10 | 2957 days | 100% |
| Andy | 9/10 | 2962 days | 99% |
| Toby | 10/10 | 2968 days | 100% |
| Micha Kuster | 10/10 | 3026 days | 95% |
| Tim | 8/10 | 3042 days | 91% |
| Jendrik | 8/10 | 3042 days | 91% |
| Alice Frater | 7/10 | 3049 days | 84% |
| Jade Williams | 10/10 | 3062 days | 92% |
| Cora | 9/10 | 3303 days | 69% |
| Lauren Dinnage | 10/10 | 3311 days | 69% |
| Mike Munzenmaier | 9/10 | 3318 days | 68% |
| Matt Irwin | 8/10 | 3321 days | 66% |
| Annalies Beard | 8/10 | 3321 days | 66% |
| Laura Schafer | 9/10 | 3329 days | 67% |
| D Davey | 10/10 | 3338 days | 67% |
| Kirsten Gehrenbeck | 6/10 | 3340 days | 54% |
| Lucile Souday | 10/10 | 3349 days | 66% |
| Lisa Kalkert | 10/10 | 3350 days | 66% |
| David | 10/10 | 3350 days | 66% |
| Philip Piel | 9/10 | 3350 days | 65% |
| Miro | 6/10 | 3350 days | 53% |
| Chiara | 9/10 | 3350 days | 65% |
| Sabine Bergen | 9/10 | 3353 days | 65% |
| Annika Locker | 10/10 | 3356 days | 65% |
| Jess | 8/10 | 3387 days | 61% |
| Lilli Erni | 9/10 | 4020 days | 5% |
| Franz Birkefeld | 9/10 | 4021 days | 5% |
| Laina Black | 7/10 | 4041 days | 2% |
| Ricky White | 9/10 | 4041 days | 3% |
| Jennifer Garner | 9/10 | 4055 days | 2% |
| Philip Donachie | 10/10 | 4058 days | 2% |
| Klaus Petersen | 7/10 | 4060 days | 0% |
| Matthew Trezise | 10/10 | 4061 days | 2% |
| Lorraine Doyle | 10/10 | 4393 days | 19% |
| Lisa Blake | 9/10 | 4513 days | 19% |
| Jenben | 10/10 | 4527 days | 19% |
| David | 7/10 | 4527 days | 16% |
| Nikita Sue | 8/10 | 4794 days | 18% |
| Darren Ronchetti | 10/10 | 4797 days | 19% |
| Asha | 9/10 | 4832 days | 19% |
| Helen & Laurence | 9/10 | 4870 days | 19% |
| kirribilliangel | 10/10 | 4954 days | 19% |
| Dave van Bergen | 9/10 | 5102 days | 19% |
| Guult Ryan | 10/10 | 5124 days | 19% |
| Claire Colquhoun | 8/10 | 5125 days | 18% |
| Andy Johnson | 10/10 | 5129 days | 19% |
| Leanne Shepherd | 8/10 | 5130 days | 18% |
| Chris White | 10/10 | 5145 days | 19% |
| Jane & Regis | 7/10 | 5154 days | 16% |
| Invictus | 8/10 | 5319 days | 18% |
| craigy | 7/10 | 5350 days | 16% |
| Rob | 8/10 | 5420 days | 18% |
| David | 7/10 | 5436 days | 16% |
| Alzbeta Czech | 10/10 | 5517 days | 19% |
| Becky | 8/10 | 5524 days | 18% |
| Amer | 9/10 | 5528 days | 19% |
| Greg Gerritz | 8/10 | 5530 days | 18% |
| Chance McGuire | 10/10 | 5531 days | 19% |
| Hailey & Fin | 8/10 | 5543 days | 18% |
| pedawrds | 10/10 | 5582 days | 19% |
| thomash | 10/10 | 5587 days | 19% |
| asiacritics | 7/10 | 5593 days | 16% |
| Bue Verrept | 8/10 | 5600 days | 18% |
| canadianislandgirl | 7/10 | 5623 days | 16% |
| Ash Sturm | 9/10 | 5623 days | 19% |
| wileyman | 9/10 | 5654 days | 19% |
| clairet | 9/10 | 5702 days | 19% |
| ToryL | 9/10 | 5715 days | 19% |
| muriellef | 7/10 | 5719 days | 16% |
| katesh | 10/10 | 5792 days | 19% |
| caroldarren | 10/10 | 5837 days | 19% |
| Jake1 | 9/10 | 5839 days | 19% |
| HanT | 8/10 | 5846 days | 18% |
| Yvanna | 8/10 | 5856 days | 18% |
| EmmaL | 8/10 | 5870 days | 18% |
| AnthonyB1 | 8/10 | 5871 days | 18% |
| kiwibrit86 | 9/10 | 5880 days | 19% |
| Matt | 10/10 | 5886 days | 19% |
| SuenSwitzerland | 9/10 | 5896 days | 19% |
| Carolyn | 9/10 | 5899 days | 19% |
| Marcus | 8/10 | 5899 days | 18% |
| Kirsty | 10/10 | 5901 days | 19% |
| Fam | 9/10 | 5905 days | 19% |
| Hayley | 8/10 | 5911 days | 18% |
| Debbie Mossman | 9/10 | 5912 days | 19% |
| Alan | 8/10 | 5915 days | 18% |
| Claire | 10/10 | 5922 days | 19% |
| Spyfox | 10/10 | 5943 days | 19% |
| Sonja | 9/10 | 5950 days | 19% |
| Tim | 8/10 | 5957 days | 18% |
| Lorri S | 8/10 | 5961 days | 18% |
| lming60 | 10/10 | 5962 days | 19% |
| melissa | 10/10 | 5963 days | 19% |
| Vincent | 9/10 | 5967 days | 19% |
| Hanna | 5/10 | 5982 days | 8% |
| Henry | 8/10 | 6004 days | 18% |
| Laura | 9/10 | 6020 days | 19% |
| Dave | 9/10 | 6027 days | 19% |
| Anna | 8/10 | 6034 days | 18% |
| S D | 9/10 | 6051 days | 19% |
| Alex Paice | 9/10 | 6061 days | 19% |
| Nikki Gray | 9/10 | 6087 days | 19% |
| Kellie Teichmann | 10/10 | 6138 days | 19% |
| L1z4rd | 9/10 | 6157 days | 19% |
| Allie61 | 10/10 | 6202 days | 19% |
| Adam Richards | 9/10 | 6217 days | 19% |
| Nick | 9/10 | 6223 days | 19% |
| Andria Davis | 9/10 | 6230 days | 19% |
| Georgina Mulligan | 9/10 | 6230 days | 19% |
| catzmagic | 9/10 | 6231 days | 19% |
| Emily Houston | 7/10 | 6234 days | 16% |
| Nancy Dol | 8/10 | 6234 days | 18% |
| John Woodrow | 9/10 | 6238 days | 19% |
| Zara | 10/10 | 6246 days | 19% |
| Ed | 6/10 | 6246 days | 13% |
| Elle | 10/10 | 6246 days | 19% |
| Issy | 7/10 | 6246 days | 16% |
| Katharina | 10/10 | 6249 days | 19% |
| Juliet | 9/10 | 6250 days | 19% |
| paulonline | 10/10 | 6252 days | 19% |
| Marc Hertogs | 7/10 | 6253 days | 16% |
| Ash McNeil | 10/10 | 6253 days | 19% |
| Warren | 8/10 | 6277 days | 18% |
| Klaus | 9/10 | 6285 days | 19% |
| Ann Westmacott | 9/10 | 6311 days | 19% |
| Neil Cooke | 8/10 | 6319 days | 18% |
| Archie Murdoch | 8/10 | 6326 days | 18% |
| Orla | 8/10 | 6327 days | 18% |
| Andy Chapman | 8/10 | 6439 days | 18% |
| JanKovar | 7/10 | 6555 days | 16% |
| Magnus | 8/10 | 6567 days | 18% |
| Lorraine | 8/10 | 6573 days | 18% |
| Dan | 9/10 | 6578 days | 19% |
| Sarah | 8/10 | 6578 days | 18% |
| Richhouse | 8/10 | 6583 days | 18% |
| Emma Gareth | 9/10 | 6589 days | 19% |
| Karen Nellist | 10/10 | 6592 days | 19% |
| beesom | 9/10 | 6603 days | 19% |
| Janne | 7/10 | 6607 days | 16% |
| Frauke | 4/10 | 6609 days | 3% |
| Dave | 10/10 | 6614 days | 19% |
| RosalindBoyes | 7/10 | 6614 days | 16% |
| Hanna | 8/10 | 6615 days | 18% |
| LisaAllen | 10/10 | 6628 days | 19% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.85% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 59 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.80% |
| 198 | -3.81% |
| 199 | -3.83% |
| 200 | -3.85% |
| 201 | -3.87% |
| 202 | -3.89% |
| 203 | -3.91% |
| … | … |
Balancing Adjustment
2.16% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
86%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.